Update dependency phpstan/phpstan to v1.12.1

This MR contains the following updates:

Package	Type	Update	Change
phpstan/phpstan	require-dev	patch	1.12.0 -> 1.12.1

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Release Notes

phpstan/phpstan (phpstan/phpstan)

v1.12.1

Compare Source

Bleeding edge 🔪

• Check if required file exists (#​3294), #​3397, thanks @​Bellangelo!
• Check generics @method @template tags above traits (https://github.com/phpstan/phpstan-src/commit/aadbf62d3ae4517fc7a212b07130bedcef8d13ac)
• Check @mixin PHPDoc tag above traits (https://github.com/phpstan/phpstan-src/commit/0d0de946900adf4eb3c799b1b547567536e23147)

If you want to see the shape of things to come and adopt bleeding edge features early, you can include this config file in your project's phpstan.neon:

includes:
	- vendor/phpstan/phpstan/conf/bleedingEdge.neon

Of course, there are no backwards compatibility guarantees when you include this file. The behaviour and reported errors can change in minor versions with this file included. Learn more

Improvements 🔧

• Allow dot-prefixed config files (#​3354), thanks @​sreichel!
  • Respect dist order over dot order (#​3379), thanks @​VincentLanglet!
• Update PhpStorm stubs + refactor WithoutSideEffectsRule classes (#​3377), thanks @​VincentLanglet!
• TypeSpecifier: Narrow (bool) $expr like $expr != false (#​3380), #​8881, #​7685, #​6006, #​10528, thanks @​staabm!
• TypeSpecifier: Narrow (string) $expr like $expr != false (#​3387), thanks @​staabm!
• TypeSpecifier: Narrow (int) $expr like $expr != false (#​3384), thanks @​staabm!
• TypeSpecifier: Narrow (float) $expr like $expr != false (#​3391), thanks @​staabm!
• Add missing rule to StubValidator (https://github.com/phpstan/phpstan-src/commit/085fcf40fefa63fc3672897276e460a6405206fb)
• Support @mixin above traits (https://github.com/phpstan/phpstan-src/commit/f5e2e32932644d61b3745e3b0f2c0910f722a86d)

Bugfixes 🐛

• Fix array_filter with callback optional persistance (#​3366), #​11570, thanks @​robotomarvin!
• RegexArrayShapeMatcher - infer constant string types in alternations (#​3369), #​11222, thanks @​staabm!
• RegexArrayShapeMatcher - improve type inference in alternations (#​3375), thanks @​staabm!
• Fix error on offset assignment to specialized strings (#​3365), #​11572, thanks @​staabm!
• Narrow string on strlen() == and === comparison with integer range (#​3342), #​11548, thanks @​staabm!
• Fix get_debug_type produces wrong type for anonymous classes with parent (#​3374), #​11562, thanks @​patrickkusebauch!
• Fix preserving list when setting union offset type to a ConstantArrayTypeBuilder (#​3382), thanks @​VincentLanglet!
• Fix preg_replace() return type (#​3338), #​11547, thanks @​staabm!
• Detect function variadic-ness anywhere deep in the declaration file (#​3370), #​11559, #​4753, thanks @​staabm!
• Add DateTimeSubMethodThrowTypeExtension (#​3378), #​11503, thanks @​VincentLanglet!
• Do not report static in PHPDoc tags above traits as an error (https://github.com/phpstan/phpstan-src/commit/777a82a0dc9d6a64a709c30a2e5bdb030b634464), #​11591
• RegexArrayShapeMatcher - Fix alternations containing a $-only case (#​3394), #​11622, thanks @​staabm!
• Do not report missing implementation abstract method from trait when it's implicitly implemented by enum (https://github.com/phpstan/phpstan-src/commit/c50b71fd961e9009419b8fddac835b15696f4ff5), #​11592
• Fix how well conditional types play with pre-existing @param-out variable after assignment (https://github.com/phpstan/phpstan-src/commit/5892e8debfbe2f44306e6707c457665784b7dacd), #​11580, #​6642

Internals 🔍

• Debugging function - PHPStan\debugScope() (https://github.com/phpstan/phpstan-src/commit/5909fb2dc78cbee46927c2cb23f7491dfef34165)
• Added regression test (#​3368), #​7856, thanks @​staabm!
• Simplify specifyTypesForConstantBinaryExpression (#​3392), thanks @​staabm!
• Refactoring: introduce MethodTagTemplateTypeCheck (https://github.com/phpstan/phpstan-src/commit/47a85bf1453a076bade7a30c94c06c0825abca7c)
• Simplify extensions (https://github.com/phpstan/phpstan-src/commit/c47730f1f97e4dc6ca9f120e2675ca709fc1402c)
• Refactoring - extract MixinCheck (https://github.com/phpstan/phpstan-src/commit/57ccd8c4d4b16c7edec4c2c2de8589956de8284d)
• MixinCheck - prepare for trait rules (https://github.com/phpstan/phpstan-src/commit/ba591420c26b174ae561e26aeed01ccf34da9dee)

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